CN202219464U

CN202219464U - Fixture component

Info

Publication number: CN202219464U
Application number: CN 201120360686
Authority: CN
Inventors: 宋元亮
Original assignee: Bosch Automotive Products Suzhou Co Ltd
Current assignee: Bosch Automotive Products Suzhou Co Ltd
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2012-05-16
Anticipated expiration: 2021-09-23

Abstract

The utility model provides a fixture component which comprises a main body part (3) and a fixture head (5) detachably arranged on the main body part (3), wherein a fixture head body (17) of the fixture head (5) can receive a workpiece in a shape matching manner; the fixture component is characterized in that the fixture component further comprises a work keeping mechanism for keeping the workpiece at the position of the fixture head body (17), the workpiece keeping mechanism comprises a swing block (41) rotatably arranged on the fixture head body (17), a second spring (45) arranged between the swing block (41) and the fixture head body (17), and a keeping pin (49) connected with the lower end of the swing block (41) and penetrating through a hole formed on the fixture head body (17); and the second spring (45) ensures that the lower end of the swing block (41) faces toward the fixture head body (17) to rotate inwards or is far away from the fixture head body (17) to rotate outwards. According to the fixture component provided by the utility model, the position of the workpiece can be reliably and accurately kept.

Description

Clamp assembly

Technical field

The utility model relates to a kind of clamp assembly.

Background technology

In modern times in the manufacturing industry, for example when making the abs braking system,, usually need adopt clamp assembly in order to be screwed to desired location such as the workpiece of various nuts etc.In existing clamp assembly; Workpiece is fixed on the throne through the coupling between the correspondingly-shaped of the internal cavities of himself physical form and clamp head; In the motion process of clamp assembly; Workpiece may be shifted with respect to clamp head, causes the final position of workpiece inaccurate, thereby can't workpiece correctly be installed to correct position.In addition, for difform workpiece is clamped reliably, need usually to change the clamp head on the clamp assembly to variform workpiece.In existing clamp assembly, clamp head normally is fixed on the main part of clamp assembly through bolt.Before changing clamp head, need each bolt be backed out respectively, and after changing clamp head, also need each bolt be screwed on respectively, unusual trouble, consuming time is in the reality even will be above five minutes.

For this reason, a kind of improved clamp assembly need be provided.

The utility model content

The purpose of the utility model is exactly the defective that will overcome above-mentioned prior art, and a kind of improved clamp assembly is provided, and this clamp assembly can keep the position of workpiece reliably, exactly, and can change clamp head easy, apace.

According to the utility model; A kind of clamp assembly is provided; Said clamp assembly comprises main part and is releasably attached to the clamp head on the said main part; The clamp head body of said clamp head can receive workpiece in form fit ground; It is characterized in that; Said clamp assembly also comprises the workpiece maintaining body that said workpiece is held in place on said clamp head body, said workpiece maintaining body comprises the swinging block that is rotatably installed on the said clamp head body, be arranged on second spring between said swinging block and the said clamp head body and be connected with the lower end of said swinging block and pass the maintenance pin that is formed on the hole on the said clamp head body, the lower end that said second spring makes said swinging block towards said clamp head body inwardly rotation or away from said clamp head body to inner rotary.

Preferably; On the shell body of said main part, be formed with at least two second slits of the inner space of leading to said shell body; On said clamp head body, be formed with the 3rd slit with the corresponding position of said second slit, said swinging block is rotatably installed in each said the 3rd slit.

Preferably, the said main part sleeve of end that also comprise the main shaft that is positioned at said shell body and be installed to said main shaft to move up and down with said main shaft.

Preferably, the clamp head body of said clamp head is formed with the cavity that is used to receive workpiece, and said maintenance pin passes the through hole that leads to said cavity.

Preferably; Said sleeve has tapering point; Said tapering point moves down along with said main shaft and inserts contact in the space between the upper end of said swinging block and oppress the upper end of said swinging block; The upper end that drives said swinging block rotates away from said inner space, and the lower end of said swinging block is inwardly rotated towards said clamp head body center.

Preferably; Said clamp head body forms the said workpiece of form fit ground reception in the outside; Be formed with the conical cavity that diameter from top to bottom diminishes gradually below the said sleeve; Said sleeve is along with said main shaft moves down and the upper end of said swinging block is accommodated in the conical cavity of said sleeve, and the upper end that drives said swinging block rotates towards said inner space, and the lower end of said swinging block away from said clamp head body center to inner rotary.

Preferably, said main part is connected with external drive mechanism through bindiny mechanism, so that under the effect of said external drive mechanism, rotate perhaps said main shaft is moved up and down.

Preferably; On the shell body of said main part, be formed with at least two first slits with the different position of said second slit; The top of said first slit is not run through said shell body and is formed with diapire; The groove of the inner space of leading to said shell body is formed at the bottom of said first slit; In each said first slit, the hook portion that has hook is installed rotatably respectively; First spring is arranged between the upper end and said diapire of said hook portion; The upper end that said first spring is tending towards making said hook portion is rotated and the hook that is positioned at said hook portion lower end is rotated to said shell body is inboard to the said shell body outside, makes that said hook had been hooked under the effect of said first spring on the protuberance or recess that is formed on the said clamp head body when clamp head body when said clamp head was received in the inner space of shell body of said main part.

Preferably, the shell body of said main part comprises two said first slits that radially relatively are provided with and is separately positioned on two said hook portion in said first slit, and said clamp head body comprises radially two protuberances or recess relatively.

Preferably, relatively be formed with two elongated prominent ribs in the outer radial of said clamp head body, said protuberance or recess are formed on the said prominent rib, and said prominent rib is inserted into respectively in said first slit on the said shell body.

According to the clamp assembly of the utility model, can keep the position of workpiece reliably, exactly.

Description of drawings

Fig. 1 has shown the clamp assembly according to the utility model with cutaway view;

Fig. 2 has shown the clamp assembly according to the utility model with another cutaway view that becomes 90 degree directions to cut open with Fig. 1;

Fig. 3 is to have shown the clamp assembly according to the utility model with the similar cutaway view of Fig. 1, and wherein, clamp head is disassembled from main part;

Figure 4 and 5 are respectively to have shown that with the similar cutaway view of Fig. 1 and 2 workpiece is about to insert according to the state in the clamp assembly of the utility model;

Fig. 6 is to have shown the clamp assembly according to the utility model with the similar cutaway view of Fig. 2, and wherein workpiece has been inserted in the clamp assembly according to the utility model; And

Fig. 7 is to have shown the clamp assembly according to the utility model with the similar cutaway view of Fig. 2, and wherein workpiece has been inserted into according in the clamp assembly of the utility model and through keeping pin to be securely held on the position.

The specific embodiment

Shown in Fig. 1-3, comprise main part 3 and be releasably attached to the clamp head 5 on the main part 3 according to the clamp assembly 1 of the utility model.Main part 3 comprises main shaft 7 and is installed to the sleeve 9 of main shaft 7 ends to move up and down with main shaft 7.The arranged outside of sleeve 9 has shell body 11, and shell body 11 is preferably cylindrical.Preferably, the upper end of sleeve 9 is formed with diameter and becomes most of 13, when shell body 11 in, moving down along with main shaft 7 with convenient sleeve 9 diameter become most of 13 with the upper end 15 of shell body 11 against, continue to move down thereby limit sleeve 9.Sleeve 9 is realized along with main shaft 7 moves up and down with any method known in the art in shell body 11.In addition, the entire body portion 3 that comprises main shaft 7, sleeve 9 and shell body 11 is connected with external drive mechanism such as motor through unshowned bindiny mechanism, thereby with the externally effect rotation down of driving mechanism of known manner.

Clamp head 5 comprises clamp head body 17, is formed with the cavity 21 that is used to receive workpiece in the bottom 19 of clamp head body 17.To the difformity of workpiece, cavity 21 has and the corresponding shape of workpiece, so that hold workpiece suitably.The shape on the top 23 of clamp head body 17 is suitable for making it can be received in the inner space 25 of shell body 11 bottoms of main part 3.

For clamp head 5 is releasably attached on the main part 3; According to the utility model; Bottom at shell body 11 radially relatively is formed with first slit 27; The top of first slit 27 do not run through shell body 11 and the reserve part shell body with the diapire 27a on the top that forms first slit 27, the groove that runs through shell body 11 is formed at the bottom of first slit 27.It should be understood that first slit 27 is not that radially relatively to form also be feasible.In first slit 27, be fixed with the lower end and have the hook portion 31 of linking up with 31a through first pin 29.Between the diapire 27a on the top of the upper end of hook portion 31 31b and first slit 27, be provided with first spring 33; First spring 33 always is tending towards making hook portion 31 around 29 rotations of first pin; And making the upper end of hook portion 31 rotate to shell body 11 outsides, the lower end of hook portion 31 is to shell body 11 inboard rotations.The outside on the top 23 of clamp head body 17 radially relatively is formed with two protuberances 34 accordingly.When the top 23 of clamp head body 17 is received in the inner space 25 of shell body 11 bottoms of main part 3; Under the effect of first spring 33; The hook 31a of hook portion 31 is hooked on the protuberance 34 on the clamp head body 17, makes clamp head 5 can be arrived on the main part 3 by reliable installation.Should be understood that it also is feasible replacing protuberance 34 with the recess on the top 23 that is formed on clamp head body 17.In this case, under the effect of first spring 33, the hook 31a of hook portion 31 is received in this recess and is hooked on the roof of this recess.

For the ease of clamp head 5 is releasably attached on the main part 3, can be formed with two elongated prominent ribs 35 accordingly in the outer radial on the top 23 of clamp head body 17, above-mentioned protuberance 34 or recess can be formed on the prominent rib 35.Clamp head 5 is being installed to 3 last times of main part, prominent rib 35 is inserted into respectively in first slit 27 on the shell body 11, and guide clamp head 5 successfully is installed on the main part 3.Prominent rib 35 can form with clamp head body 17.Also can on clamp head body 17, form groove, prominent rib 35 is fixedly embedded in the groove on the clamp head body 17.Although the hook portion 31 that is provided with more than two also is feasible,, preferably include only two hook portion 31 that radially relatively are provided with for the ease of pushing hook portion 31 with clamper for disassembling head 5 with a hand.

In the above-described embodiments; The hook portion 31 that is arranged on the shell body 11 of main part 3 cooperatively interacts with the protuberance 34 or the recess that are arranged on the clamp head body 17; But what it may occur to persons skilled in the art that is, hook portion 31 being arranged on the shell body 11 of main part 3 and protuberance 34 or recess are arranged on also is feasible on the clamp head body 17.

Below in conjunction with Fig. 1 and 3 the installation and removal process according to the clamp head 5 of the clamp assembly 1 of the utility model is described.Under the state that main part shown in Figure 13 and clamp head 5 are installed together; Operating personnel firmly push the upper end 31b of hook portion 31 along direction shown in the arrow A; Overcome the tension force effect of first spring 33, the hook 31a of hook portion 31 is rotated away from protuberance on the clamp head body 17 34 or recess, around first pin 29 then along the pulling of direction shown in arrow B clamp head 5; Clamp head 5 is disassembled, to change the clamp head of other type from main part 3.With the prominent rib 35 of new clamp head along pushing in first slit 27 on the shell body 11 with direction in the opposite direction shown in the arrow B; Unclamp pushing then to the upper end 31b of hook portion 31; Under the tension force effect of first spring 33; The hook 31a of hook portion 31 is hooked on the protuberance 34 or recess on the clamp head body 17, makes clamp head 5 quilts install reliably and can arrive on the main part 3.The clamp assembly 1 of the utility model can be changed clamp head 5 quickly and easily being less than in time of 30 seconds.

Clamp assembly 1 according to the utility model also comprises the workpiece maintaining body that workpiece is held in place.Particularly, also radially relatively be formed with second slit 37 that runs through shell body 11 in the position different, the bottom of shell body 11 with first slit, 27 positions.It should be understood that second slit 37 is not that radially relatively to form also be feasible.On clamp head body 17, be formed with the 3rd slit 39 with second slit, 37 corresponding positions.Swinging block 41 is rotatably installed in the 3rd slit 39 through second pin 43.Be arranged at second the pin 43 below and under the effect of second spring 45 between swinging block 41 and the clamp head body 17; The upper end of swinging block 41 is tending towards around second pin 43 towards clamp head body 17 centers rotations, and the lower end of swinging block 41 is tending towards around second pin 43 away from clamp head body 17 centers to inner rotary.Certainly, second spring 45 as tension spring also can be replaced by the tension spring that is arranged on second pin, 43 tops.On the clamp head body 17 of the 3rd slit 39 lower ends, be formed with the through hole 47 that leads to cavity 21, in through hole 47, be provided with maintenance pin 49.Swinging block 41 is connected with keeping pin 49, makes maintenance pin 49 can in through hole 47, move under the drive of swinging block 41, withdraws thereby the end that keeps pin 49 is given prominence in cavity 21 or from cavity 21.Although swinging block 41 and maintenance pin 49 can form, for the ease of assembling, swinging block 41 is sold 49 with maintenance and is formed independent parts.In addition, although the swinging block 41 that forms separately with keep pin 49 directly to interconnect, preferably swinging block 41 with keep pin 49 to interconnect through connecting rod 51.One end of connecting rod 51 inserts and is formed in the hole on the swinging block 41, and the other end of connecting rod 51 inserts in the hole that is formed on the maintenance pin 49.

Be installed to 3 last times of main part when clamp head 5, the swinging block 41 that is installed in the 3rd slit 39 also is arranged in second slit 37 that runs through shell body 11.Because under the effect of second spring 45, the upper end of swinging block 41 rotates into the central space of shell body 11 through second slit 37.The lower end of swinging block 41 always is tending towards around second pin 43 away from clamp head body 17 centers to inner rotary, thereby drive as shown in Figure 2 keeps pin 49 from cavity 21 withdrawals.At this moment, shown in Figure 4 and 5, can prepare workpiece 52 is placed in the cavity 21 of clamp head body 17.Be placed in the cavity 21 of clamp head body 17 to workpiece 52 form fit, as shown in Figure 6.For workpiece 52 is remained in the cavity 21 accurately and reliably, the tapering point 9a of sleeve 9 that is installed to main shaft 7 is along with main shaft 7 moves down, insert in the space between the upper end of swinging block 41 and with the last end in contact of swinging block 41.Along with sleeve 9 continues to move down; Overcome the tension force effect of second spring 45; Make the upper end of swinging block 41 around second pin 43 away from the central space of shell body 11 to inner rotary, the lower end of swinging block 41 rotates towards clamp head body 17 centers around second pin 43.Keep pin 49 in through hole 47, moving under the drive of swinging block 41, outstanding and pass corresponding aperture or the groove 53 on the workpiece 52 to cavity 21, thus workpiece 52 is remained in the cavity 21 accurately and reliably, as shown in Figure 7.Workpiece 52 through keeping pin 49 to remain on reliably in the clamp assembly 1 can be installed to the final position along with clamp assembly 1 rotation.After workpiece 52 is installed to the final position; Sleeve 9 moves up and breaks away from and the contacting of the upper end of swinging block 41; The lower end of swinging block 41 under the effect of second spring 45 around second the pin 43 away from clamp head body 17 centers to inner rotary; Thereby drive to keep pin 49, thereby can make clamp assembly 1 and workpiece on the throne 52 is installed is separated from cavity 21 withdrawals.

In the above-described embodiments; Be placed in the cavity 21 of clamp head body 17 to workpiece 52 form fit; But the outer shape of clamp head body 17 also can form and workpiece 52 form fit, makes workpiece 52 can be received and be placed in clamp head body 17 outsides.In this case, be arranged at second pin 43 belows and can be by being arranged at second pin 43 belows and at the tension spring between swinging block 41 and the clamp head body 17 or be arranged at second tension spring sold above in the of 43 and replace as the tension spring of second spring 45.In this embodiment, second spring always is tending towards making the upper end of swinging block 41 to rotate away from said inner space 25, and the lower end of swinging block 41 is inwardly rotated towards clamp head body 17 centers.Correspondingly, be formed with the conical cavity that diameter from top to bottom diminishes gradually below the sleeve 9.After workpiece 52 is placed in to form fit clamp head body 17 outsides; Along with sleeve 9 moves down; Insert in the conical cavity below the sleeve 9 upper end of swinging block 41; Overcome the active force of second spring 45, make swinging block 41 the upper end around second the pin 43 central spaces towards shell body 11 inwardly rotate, the lower end of swinging block 41 around second the pin 43 away from clamp head body 17 centers to inner rotary.Keep pin 49 in the hole 47 that is being formed under the drive of swinging block 41 on the clamp head body, to move; Outwards outstanding and pass corresponding aperture or the groove 53 on the workpiece 52 away from clamp head body 17 centers, thus workpiece 52 is remained on the clamp head body 17 accurately and reliably.

Afterwards; Sleeve 9 moves up and breaks away from and the contacting of the upper end of swinging block 41; The lower end of swinging block 41 inwardly rotates towards clamp head body 17 centers around second pin 43 under the effect of second spring 45; Thereby drive to keep pin 49 inwardly to withdraw, thereby can make clamp assembly 1 and workpiece on the throne 52 is installed is separated towards clamp head body 17 centers.

Since workpiece 52 except be maintained in the cavity 21 through form fit or clamp head body 17 outsides; Also through keeping pin 49 to be held in place; Even therefore in the mobile or rotary course of clamp assembly 1; Workpiece can not be shifted with respect to clamp head yet, and workpiece can correctly be installed to correct position, and guarantees final position accurately.

Although shown two swinging blocks that radially relatively are provided with in the preferred embodiment and kept pin, be understood that shape according to workpiece can be provided with more than two swinging block with keep pin.More than under two swinging block and the situation that keeps pin, corresponding swinging block with keep pin preferably to be provided with symmetrically.

More than combine the preferred embodiment of the utility model that the utility model is described, it should be understood that those skilled in the art can carry out various improvement to the utility model under the situation that does not break away from the utility model principle.

Claims

1. clamp assembly; Said clamp assembly comprises main part (3) and is releasably attached to the clamp head (5) on the said main part (3); The clamp head body (17) of said clamp head (5) can receive workpiece in form fit ground; It is characterized in that; Said clamp assembly also comprises the workpiece maintaining body that said workpiece is held in place on said clamp head body (17); Said workpiece maintaining body comprises the swinging block (41) that is rotatably installed on the said clamp head body (17), be arranged on second spring (45) between said swinging block (41) and the said clamp head body (17) and be connected with the lower end of said swinging block (41) and pass the maintenance pin (49) that is formed on the hole on the said clamp head body (17), the lower end that said second spring (45) makes said swinging block (41) towards said clamp head body (17) inwardly rotate or away from said clamp head body (17) to inner rotary.

2. clamp assembly as claimed in claim 1; It is characterized in that; On the shell body (11) of said main part (3), be formed with at least two second slits (37) of the inner space (25) of leading to said shell body (11); Upward be formed with the 3rd slit (39) with the corresponding position of said second slit (37) at said clamp head body (17), said swinging block (41) is rotatably installed in each said the 3rd slit (39).

3. clamp assembly as claimed in claim 2 is characterized in that, said main part (3) also comprises main shaft (7) that is positioned at said shell body (11) and the sleeve (9) of the end that is installed to said main shaft (7) to move up and down with said main shaft (7).

4. clamp assembly as claimed in claim 3 is characterized in that, the clamp head body (17) of said clamp head (5) is formed with the cavity (21) that is used to receive workpiece, and said maintenance pin (49) passes the through hole (47) that leads to said cavity (21).

5. clamp assembly as claimed in claim 4; It is characterized in that; Said sleeve (9) has tapering point (9a); Said tapering point (9a) moves down along with said main shaft (7) and inserts contact in the space between the upper end of said swinging block (41) and oppress the upper end of said swinging block (41), and the upper end that drives said swinging block (41) is away from said inner space (25) rotation, and the lower end of said swinging block (41) is inwardly rotated towards said clamp head body (17) center.

6. clamp assembly as claimed in claim 3; It is characterized in that; Said clamp head body (17) forms the said workpiece of form fit ground reception in the outside; Be formed with the conical cavity that diameter from top to bottom diminishes gradually below the said sleeve (9); Said sleeve (9) is along with said main shaft (7) moves down and the upper end of said swinging block (41) is accommodated in the conical cavity of said sleeve (9), and the upper end that drives said swinging block (41) is towards said inner space (25) rotation, and the lower end of said swinging block (41) away from said clamp head body (17) center to inner rotary.

7. clamp assembly as claimed in claim 3 is characterized in that, said main part (3) is connected with external drive mechanism through bindiny mechanism, so that under the effect of said external drive mechanism, rotate perhaps said main shaft (7) is moved up and down.

8. clamp assembly as claimed in claim 2; It is characterized in that; Shell body (11) in said main part (3) upward is formed with at least two first slits (27) with the different position of said second slit (37); The top of said first slit (27) is not run through said shell body (11) and is formed with diapire (27a); The groove of the inner space (25) of leading to said shell body (11) is formed at the bottom of said first slit (27); The hook portion (31) that has hook (31a) rotatably is installed respectively in each said first slit (27); First spring (33) is arranged between the upper end (31b) and said diapire (27a) of said hook portion (31); The upper end that said first spring (33) is tending towards making said hook portion (31) is rotated and the hook (31a) that is positioned at said hook portion (31) lower end is rotated to said shell body (11) is inboard to said shell body (11) outside, makes clamp head body (17) when said clamp head (5) be received in the inner space (25) of shell body (11) of said main part (3) when middle, and said hook (31a) is being hooked under the effect of said first spring (33) on the protuberance (34) or recess that is formed on the said clamp head body (17).

9. clamp assembly as claimed in claim 8; It is characterized in that; The shell body (11) of said main part (3) comprises two said first slits (27) that radially relatively are provided with and is separately positioned on the said hook portion (31) in two said first slits (27), and said clamp head body (17) comprises radially two protuberances (34) or recess relatively.

10. clamp assembly as claimed in claim 9; It is characterized in that; Outer radial at said clamp head body (17) relatively is formed with two elongated prominent ribs (35); Said protuberance (34) or recess are formed on the said prominent rib (35), and said prominent rib (35) is inserted into respectively in said first slit (27) on the said shell body (11).